gap mill
1.This paper contents ?IGC65GHCW cold strip mill systenf which is one sub-item of ?The whole set equipment andstudy of correlation technologies of IGC 65OHCW cold strip milV~. awarded second prizeof national science and technology of 1999. It researches wholly and by the numbers theinner roll-gap control technology, used in HCW strip mill, and some key practicalproblems.
2.The paper has introduced the working principle of the LD-120 five-high tube cold rolling mill and the performance of its main parts, and has analyzed the affective factors and adjustment method of the gap among the moveable bracket, intermediate bed slider face and top tray of tube blank, and has solved the gap adjustment problem through calculation.
4.Works on the bending roll system of four-roll rolling mill, the workroll shape variation caused by the force of bending roll and the contact stress between rolls was researched with the FEM software ANSYS, the maximum deformation of the work roll was calculated, and the curve of the gap adopting the Least-Squares method was fitted, which set the base of the further calculation of load-gap shape.

